package com.hypo.interception;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * 自定义拦截器
 */
//@Component
public class DemoInterceptor implements HandlerInterceptor {
    /**
     *目标资源方法执行前执行。 返回true：放行    返回false：不放行
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("preHandle......");
        return true; //放行
    }

    /**
     *目标资源方法执行后执行
     */
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("postHandle......." );
    }

    /**
     * 视图渲染完毕后执行，最后执行
     */
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("afterCompletion.....");
    }
}
